When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 35 days in advance, which can save you up to 90% on flights from Perth to Illinois compared to booking the week you need them. Waiting 35 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $2,310. For sooner than that we have options available in the next 3 days from $3,818.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, November can be a great choice for travel to Illinois. Flights to Illinois from Perth in November are about $2,737 on average during November, but can be found for as low as $1,533.
When flying from Perth to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$2,337 - $4,971
Route
Depart
Return
Price
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Sat 11/5
1 stop27h 30m
Chicago O'Hare Intl
Sun 9/6
1 stop41h 30m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Sat 11/5
2 stops34h 10m
Chicago O'Hare Intl
Sun 9/6
2 stops45h 10m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Mon 22/4
2 stops34h 00m
Chicago O'Hare Intl
Tue 23/4
2 stops47h 40m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Sat 11/5
3 stops42h 14m
Chicago O'Hare Intl
Sun 9/6
2 stops34h 15m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Sat 11/5
3 stops44h 29m
Chicago O'Hare Intl
Sun 9/6
3 stops35h 40m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Sat 11/5
1 stop27h 30m
Chicago O'Hare Intl
Sun 9/6
2 stops38h 22m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Mon 22/4
2 stops33h 20m
Chicago O'Hare Intl
Tue 23/4
1 stop31h 50m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Mon 22/4
1 stop29h 20m
Chicago O'Hare Intl
Tue 23/4
1 stop33h 55m
PerthChicago O'Hare Intl
PER - ORD
PERORD
Perth
Fri 10/5
2 stops35h 48m
Chicago O'Hare Intl
Sun 9/6
2 stops33h 10m
No data available for this route at this time. Please check back soon.
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Overall
Entertainment
Boarding
Food
Crew
Comfort
Reviews
Flight was on time, seating was comfortable, food was delicious, and crew was wonderful. Smooth flight overall!
Deals for Perth to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights simply makes it quick and affordable to book flights from Perth to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Cheapflights does show flights with no change fees to all users. To see these options for flights from Perth to Illinois, users can toggle the no change fees filter when performing a flight search.
Not ready to book yet? You can track prices for flights from Perth to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.
Yes, you can often find last-minute deals on Perth to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
Cheapflights aggregates prices from various travel booking sites. This allows you to compare prices and choose the best deal.
Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.